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A random sample of 16 pharmacy customers showed the wait times below (in minutes). 21 22 22 16 14 14 17 17 20 26 25

A random sample of 16 pharmacy customers showed the wait times below (in minutes). 21 22 22 16 14 14 17 17 20 26 25 19 19 12 16 18

a) Find a 90 percent confidence interval for , assuming the sample is from a normal population. (Round your standard deviation answer to 4 decimal places and t-value to 3 decimal places. Round your answers to 3 decimal places.

The 90% confidence interval to

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